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Finding the Fourth Proportional to 291,806.10, 437,903.55 and 133,953.30

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Solution

The fourth proportional to 291,806.10, 437,903.55 and 133,953.30 is: 201,019.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,806.10 : 437,903.55 = 133,953.30 : x
  2. Step 2: Convert to fraction form
    291,806.10/437,903.55 = 133,953.30/x
  3. Step 3: Cross multiply
    291,806.10x = 437,903.55 × 133,953.30
  4. Step 4: Simplify right side
    291,806.10x = 58,658,625,604.22
  5. Step 5: Solve for x
    x = 58,658,625,604.22/291,806.10
  6. Step 6: Final answer
    x = 201,019.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.